At a guess I would say that it comes down to costs. My wife has made me an amazing collection of Aloha shirts, I can buy Aloha shirts online for next to nothing, but my shirts cost a small fortune. It takes three yards of fabric to make one shirt, the fabric that my wife buys costs around £15 @ yard. That's £45 per shirt, before it's been made and before the additional costs are added, like notions, paper pattern, interfacing and so on. Each shirt is around £55 before it's even a shirt.
Apologies if that sounds boastful, the point that I am making is, you get what you pay for. Not all of my shirts are of an Hawaiian flare, this particular one is an Art-Deco design. The shirt must have been washed and ironed countless times in the ten years that I have had it. The quality of the fabric and the strength of the dye that has been used is evident. There's no fade, no greying and even the hard wearing parts around the collar have withstood all that washing an ironing.
There are two fabrics, the Art-Deco pattern and the plain jet black to enhance it. Not black enough? I don't think so.
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